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Bank Clerk :: CN Test 207
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1 .

The mean of 50 observations was 36. It was found later than an observation 48 was wrongly taken as 23. The corrected (New) means is

 35.2 36.1 36.5 39.1
2 .

The value of √5+√11+√19+√29+√49 is

 3 9 7 5
3 .

Simplify 1 + 1/2/1 - 1/2 ÷ 4/7 (2/3 + 3/10) of 1/2/1/2 + 1/3/1/3

 2/3 37 1/2 3/2 18 3/8
4 .

√3√0.004096 is equal to

 4 0.4 0.04 0.004
5 .

The average salary of all the workers in a workshop is Rs. 8000. The average salary of 7 technicians is Rs. 12000 and the average salary of the rest is Rs. 6000. The total number of workers in the workshop is

 20 21 23 22
6 .

A trader's marked price is 30% above the cost price and gives 1 articles free for buying every 15 articles and thus gains 35%. The marked price in increased above the cost price by

 40% 39% 50% 20%
7 .

A trader's marked price is 30% above the cost pirce. He allows his customers 10% discount on the marked price. What profit does he make ?

 17% 18% 16% 19%
8 .

A can do a piece of work in 60 days. He worker for 15 days and then B alone finishes the remaining work in 30 days. The two together can finish the work in

 24 days 25 days 30 days 32 days
9 .

A shopkeeper sells his goods at 10% discount on the marked price. What price should he mark on an article that costs him Rs. 900 to gain 10% ?

 Rs.1275 Rs.1205 Rs.1175 Rs.1100
10 .

A wall of 100 metres can be built by 7 men or 10 women in 10 days. How many days will 14 men and 20 women take to build a wall of 600 metres ?

 15 20 25 30